perplexity-comet-mcp

MCP server · npm · ★ 52 · graded 2026-10-24Source linked

Production-grade MCP server bridging Claude Code with Perplexity Comet browser - Windows support, tab management, smart completion detection

No outside reports on file

perplexity-comet-mcp fetches arbitrary web URLs; restrict its folder reach, network access, and credentials before installing.

Based on public adoption and transparency signals as of Oct 23, 2026. Our opinion, not a code audit or security guarantee.

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What it can access

Local filesNo local folder access notedLOW
Command executionNo shell command runner notedLOW
Network reachFetches arbitrary web URLsREVIEW
CredentialsNo API token requiredLOW
Package sourcenpm (perplexity-comet-mcp)PUBLIC

Inferred from this listing’s public package details and description. Check the project’s source before installing.

Install

npx -y perplexity-comet-mcp

All setup options ↓

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Everything known

We found nothing about this project in the sources we read (last checked 2026-10-30). That does not mean it has no problems.

0 incidents · 0 advisories · 0 news articles · 0 community threads · checked 2026-10-30

Popularity grade: C (from public signals such as stars and downloads, not a code review). Graded 2026-10-24.

Sources we read: OSV, GitHub Advisory Database, CISA Known Exploited Vulnerabilities, 44 security news feeds and our incident library. Last checked 2026-10-30.

Check a specific version →

About Perplexity Comet MCP

Perplexity Comet MCP is an MCP server focused on Developer tools and Web & browsing: Production-grade MCP server bridging Claude Code with Perplexity Comet browser - Windows support, tab management, smart completion detection.

It is published on npm as perplexity-comet-mcp and hosted on GitHub at rapiercraft/perplexity-comet-mcp (52 GitHub stars, 96 weekly npm downloads, last repository push on 2026-06-22). Based on its public metadata, its operational scope includes: fetches arbitrary web urls.

Setup

Check these steps against the project’s own instructions before running anything.

Run perplexity-comet-mcp with --ignore-scripts in claude_desktop_config.json or .cursor/mcp.json:

json

{
  "mcpServers": {
    "perplexity-comet-mcp": {
      "command": "npx",
      "args": ["-y", "--ignore-scripts", "perplexity-comet-mcp"]
    }
  }
}

Why this grade

CC — Moderate risk signals

Signal-based grade (2/7 points): public source code. This reflects adoption and transparency, not a code review.

Popularity and upkeep

39/100

GitHub stars: 52
Weekly npm downloads: 174
Listing last refreshed: 2026-10-28

These are public popularity signals, not a maintenance check. Look at the repository’s commit history and open issues.

Risks to watch for

Untrusted web content & prompt injection: Fetches arbitrary web pages or remote endpoints where hidden instructions could manipulate agent behavior. Restrict outbound domains and review tool outputs.
Dependency & version pinning: Distributed via npm (perplexity-comet-mcp). Pin an exact release version or commit SHA rather than floating tags so upstream updates are reviewed first.

How to lower the risk

Least-privilege permissions

Give it access only to the specific folders, accounts or projects it needs, never your whole drive or admin account.
Use a separate, limited API key or login just for this tool so you can switch it off without affecting anything else.

Network isolation

Run it on a work computer or sandbox account, not one holding personal or company-sensitive data.
If your IT team can, limit which websites and services it is allowed to contact.

Monitoring

Check its activity history or logs weekly at first, and look at what it changed or sent.
Turn on alerts for new logins or unusual usage on any account it connects to.

Red flags to watch for

It asks for more access than its job requires, or prompts you to paste passwords.
It suddenly updates with new owners, or starts contacting unfamiliar websites.

Questions

How do I install Perplexity Comet MCP?

Run npx -y perplexity-comet-mcp in your terminal, or add the server entry to your claude_desktop_config.json or .cursor/mcp.json as shown in the Setup section on this page. Full setup docs and environment variables are in github.com/rapiercraft/perplexity-comet-mcp.

Are there security reports about Perplexity Comet MCP?

No reports found for this package in our research (last checked 2026-10-30). Perplexity Comet MCP currently holds Grade C (Moderate risk signals) based on public adoption and transparency signals. Key risk areas to watch include untrusted web content & prompt injection:, dependency & version pinning:.

Is Perplexity Comet MCP actively maintained?

Perplexity Comet MCP has 52 GitHub stars and 174 weekly npm downloads, with its latest repository commit pushed on 2026-06-22. Our directory data was last refreshed on 2026-10-28. Check recent commit activity, release tags, and open issues at github.com/rapiercraft/perplexity-comet-mcp before pinning it in production.

What are alternatives to Perplexity Comet MCP?

You can compare Perplexity Comet MCP side by side with other Browser MCP servers in the Related tools section on this page, or use the Compare tool on AgentArmorHQ.

Maintain or use Perplexity Comet MCP? Show its live grade in your GitHub README, docs site, or run a check from the terminal before you install.

AgentArmorHQ Risk Grade C for Perplexity Comet MCP

GitHub README Markdown:

markdown

[![AgentArmorHQ Risk Grade for Perplexity Comet MCP](https://agentarmorhq.com/api/badge/rapiercraft-perplexity-comet-mcp)](https://agentarmorhq.com/skills/rapiercraft-perplexity-comet-mcp)

HTML embed:

html

<a href="https://agentarmorhq.com/skills/rapiercraft-perplexity-comet-mcp"><img src="https://agentarmorhq.com/api/badge/rapiercraft-perplexity-comet-mcp" alt="AgentArmorHQ Risk Grade for Perplexity Comet MCP" height="20" /></a>

Terminal check:

terminal

curl -fsSL https://agentarmorhq.com/api/cli | node --input-type=module - check "rapiercraft-perplexity-comet-mcp"

Share with your security lead

Need sign-off to use perplexity-comet-mcp? Copy this note for Slack, a ticket or a pull request.

### AgentArmorHQ Security Review Memo: perplexity-comet-mcp
- **Listing URL:** https://agentarmorhq.com/skills/rapiercraft-perplexity-comet-mcp
- **Type:** App connector
- **Risk Grade:** Grade C (Moderate risk signals)
- **Outside Security Advisories on File:** 0
- **Public Adoption:** 52 GitHub stars, 174 weekly npm downloads

#### Permission & Blast-Radius Signals
- **Local files:** No local folder access noted
- **Command execution:** No shell command runner noted
- **Network reach:** Fetches arbitrary web URLs
- **Credentials:** No API token required
- **Package source:** npm (perplexity-comet-mcp)

#### Recommended Hardened Setup
- **Command:** `npx -y --ignore-scripts perplexity-comet-mcp`
- **Controls:** Pin an exact version in `.mcp.json`, scope access to a single workspace folder, and use a least-privilege read-only token where supported.

_Based on public adoption and transparency signals as of Oct 23, 2026. Our opinion, not a code audit or security guarantee._

Key facts

Type: App connector
Publisher: rapiercraft
Source code: github.com/rapiercraft/perplexity-comet-mcp
Install command: npm install perplexity-comet-mcp
Est. context load: ~550 tokens / turn (~3 tool schemas, 0.27% of 200k context)
Popularity: 52 GitHub stars, 174 weekly npm downloads
Last updated: 2026-10-28
Last graded: 2026-10-24

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